Large photo uploads can be slow, but resizing and compressing images in the browser can freeze the page if the work runs on the main thread. This article shows how to use a Web Worker to process images before uploading them without interrupting the app.
PHP
Laravel Deadlocks: Queue Jobs That Already Ran End Up in failed_jobs
Below MySQL 8.0.1, or on a server Laravel misreads, workers reserve jobs with a plain FOR UPDATE and can deadlock on the DELETE. One tinker line shows which lock yours use. Read more